23bec9f9015634b7e18b6bdf7831e0776ca5312568860bba29ed83e1fe9088e3

Analysis

max time kernel
122s
max time network
125s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
22/12/2023, 14:16

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General

Target

bc98a9925d233cb28ec2440154a870c7.exe
Size

188KB
MD5

bc98a9925d233cb28ec2440154a870c7
SHA1

826db3b47878be826395adaafb1a7509505d8dcd
SHA256

23bec9f9015634b7e18b6bdf7831e0776ca5312568860bba29ed83e1fe9088e3
SHA512

1d64be7bc27e5b45249f28c44293c9bfcf152359e86409ae726e234c17e4fbbed7867d35a8a25d576baa52ac6324baf1bdfd19f6c31921cc71c4ada5b9639284
SSDEEP

3072:/cT9g8immW6Pozkk2eKs/CSr2nQ/E2S5ny+bF2u1I+ddDK7Hlq/B8Lk:o68i3odBiTl2+TCU/yk

Score

6^/10

persistence

Malware Config

Signatures

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft I Service = "C:\\Windows\\winhash_up.exe /REGstart"	bc98a9925d233cb28ec2440154a870c7.exe

Drops file in Windows directory 13 IoCs

description	ioc	Process
File created	C:\Windows\winhash_up.exe	bc98a9925d233cb28ec2440154a870c7.exe
File created	C:\Windows\SHARE_TEMP\Icon3.ico	bc98a9925d233cb28ec2440154a870c7.exe
File created	C:\Windows\SHARE_TEMP\Icon12.ico	bc98a9925d233cb28ec2440154a870c7.exe
File created	C:\Windows\bugMAKER.bat	bc98a9925d233cb28ec2440154a870c7.exe
File created	C:\Windows\SHARE_TEMP\Icon2.ico	bc98a9925d233cb28ec2440154a870c7.exe
File created	C:\Windows\SHARE_TEMP\Icon5.ico	bc98a9925d233cb28ec2440154a870c7.exe
File created	C:\Windows\SHARE_TEMP\Icon10.ico	bc98a9925d233cb28ec2440154a870c7.exe
File created	C:\Windows\winhash_up.exez	bc98a9925d233cb28ec2440154a870c7.exe
File created	C:\Windows\SHARE_TEMP\Icon7.ico	bc98a9925d233cb28ec2440154a870c7.exe
File created	C:\Windows\SHARE_TEMP\Icon13.ico	bc98a9925d233cb28ec2440154a870c7.exe
File opened for modification	C:\Windows\winhash_up.exez	bc98a9925d233cb28ec2440154a870c7.exe
File created	C:\Windows\SHARE_TEMP\Icon6.ico	bc98a9925d233cb28ec2440154a870c7.exe
File created	C:\Windows\SHARE_TEMP\Icon14.ico	bc98a9925d233cb28ec2440154a870c7.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1268 wrote to memory of 2884	1268	bc98a9925d233cb28ec2440154a870c7.exe	28
PID 1268 wrote to memory of 2884	1268	bc98a9925d233cb28ec2440154a870c7.exe	28
PID 1268 wrote to memory of 2884	1268	bc98a9925d233cb28ec2440154a870c7.exe	28
PID 1268 wrote to memory of 2884	1268	bc98a9925d233cb28ec2440154a870c7.exe	28

C:\Users\Admin\AppData\Local\Temp\bc98a9925d233cb28ec2440154a870c7.exe
"C:\Users\Admin\AppData\Local\Temp\bc98a9925d233cb28ec2440154a870c7.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1268
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Windows\bugMAKER.bat
  2⤵
  PID:2884

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\bugMAKER.bat

Filesize
76B

MD5
c2ae557ffb21c25313353e5b353ef87f

SHA1
93650324b548ee6d00b42c3b34f245344d534f14

SHA256
8dd031b746b43260d8bbd6cc0950df8b73e6d7b5bdd8c0e0664713c8578e21ee

SHA512
440c4a7a8a1c0d03b6e0ef3e98fe98b84e07606058809b4129ed08453f372337058e4c7956e259057cdaad9a8e910a9e73eb7e631779f3f4443d75ae4f6fcf83

Download Submit
memory/1268-67-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/2884-62-0x00000000022A0000-0x00000000022A1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads